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The first is the removal of a temporary prop.
首先就是一个临时支撑的移除。
youdao
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The removal of temporary support has less impact on the displacement of surrounding rock.
删除临时支护围岩位移的影响较小。
youdao
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The removal of temporary support has less impact on the displacement of surrounding rock.
删除临时支护围岩位移的影响较小。
youdao